User identity at blockhash?

[pepoospina]

api.query.identity.identityOf(account.address).at(blockHash) throws with .at is undefined

Review how to get the user identity fields at a given block. If this is not possible, then this is a red alarm.

Looking at the block where identity is checked, it seems reasonable to assume that it is possible to know the identity info of an account at a given block.